Smoke-consuming furnace



(No Model.) I

, P. B. GIESLER. 2 Sheets-Sheet. l.

Smoke Consuming Furnace.

No. 240,405. Patented A rir19, 1881.

Will/WW C. r l/ K W- N. PETERS. PNOTO-UTHOGRAPMER, WASMNGTON. D C.

(No Model.) 2 Sheets-Sheet 2. P..B. GIESLER. Smoke Consuming Furnace.

No; 240,405. Patented April 19,1881.

' wmmnmm. m mwon, D, c.

UN TED STATES PATENT OFFICE;

FRANKLIN B. GIESLER, OF MILWAUKEE, WISCONSIN.

SMOKE-CONSUMING FURNACE.

SPECIFICATION forming part Of Letters Patent No. 240,405, dated April19, 1881.

. Application filed January 10,1881. (No model.)

To all whom it may concern:

Be it known that I, FRANKLIN B. GrnsLnR, of Milwaukee, in the county ofMilwaukee, and in the State of 'Wisconsin, have invented certain new anduseful Improvements in Smoke- Oonsuming Attachments for Furnaces, 820.;and I do hereby declare that the following is a full, clear, and exactdescription thereof.

My invention relates to devices for collecting and returning smoke tofurnaces for consumption, and will be fully described hereinafter.

In the drawings, in which similar letters of reference indicate likeparts, Figure 1 is a side view of my invention. Fig. 2 is a centralvertical section of a part of a smoke-reservoir which forms part of myinvention. Fig. 3 is a horizontal section of the same on the line w w ofFig. 1; and Fig. 4 is a vertical central section of my device, and ofthe furnace in crosssection.

A is the boiler, and A the furnace, the smokeflue B of which, instead ofentering directly into the smoke-stack, extends to a reservoir, 0, whichit enters at its lower end, just under a set of cold-water fines, D,which occupies about half the length of the reservoir.

Immediately above the flnes I provide a pipe, E, which extends to thesmoke-stack, and through the center of the fines I extend a pipe, F,which at its top receives an air-pipe, F, and just below the top of thereservoir I provide the pipe F with openings b and a sleeve, K, which istoggled to the shaft K of a pinion, K meshing with a worm, K on rod K,and having a suitable crank, K The air-pipe F has a valve, F near thepipe F and a damper near its lower end. A pipe, F connects the pipe Fwith a blower, G, which, in turn, is connected with the furnace by apipe, G, having dampered branches 9 g, which enter beneath the grate.The pipe G and smoke-flue are connected by a pipe, G having a valve, 9at its lower end. This valve has a weighted lever, H, one end of whichis connected by a cord, H, with the damper in the pipe E.

Cold water is admitted to the fines D at a from the street-mains, and asit flows through the flues it is heated by the smoke. It then flows tothe boiler through pipe d.

The furnace and smoke-reservoir may be either adjacent to each other orsome distance apart without affecting the operation of the apparatus.

The operationis as follows: Open the damper E and close the dampers in gg in the branches. Now the fire may be lighted in the furnace, and untilsufficient heat has been generated to raise steam in the boiler thesmoke will pass through pipe B into the reservoir 0, and thence out tothe smoke-stack through pipe E; but when there is a pressure sufficientI connect the fan or blower G, in any suitable manner, to the boiler,and, having started the fan or blower, I open the dampers in branches gand allow the valves E to close, and drop the sleeve K below theopenings 12. Now, while a portion of the smoke and gases will be carriedout of the reservoir through the pipe E, a greater portion will be drawnby the fan or blower through openings 1) into pipe F, through pipe Finto the fan or blower, from whence it will be forced out into thefurnace beneath the grate, carrying with it a supply of oxygen, which isdrawn in through the pipe F. This pipe has a clack-valve, to stop anyback flow of air, and a damper to regulate the inflow, The damper E inpipe E is weighted so as to be nearly closed, and is connected with oneend of the weighted lever H of valve g by a cord or chain, H, so that incase the branches g g of pipe G should become obstructed the valve 9yielding to the pressure, would allow the smoke or smoke and air fromthe blower to ascend in the pipe G and at the same time the handle oflever H would draw upon cord H and open the valve E in pipe E, so as toafford an egress for the increased volume of smoke.

What I claim as my invention is- 1. In combination with the smoke-flueof a furnace, a smoke-reservoir, G, air-inlet F,pipes F, F, and G, and ablower for drawing the products of combustion from the reservoir anddelivering them beneath the furnace-grate, all as set forth.

2. In combination with the smoke-flue B, a

reservoir, 0, pipe F, air-pipe F, a blower, and

In testimony that I claim the foregoing I the pipes connecting thereservoir with the h ave hereunto set my hand this 15th day of 10chamber beneath the grate, as set forglh. 1 December, 1880. 3. Incombination With the smokeue anc 5 reservoir having pipe E, thereturn-pipe G, FRANKLIN GIESLEB" upright pipe-G valve g and damper E,the Witnesses: two latter connected by a cord or chain, H, S. S. STOUT,as set forth.

MARTIN REILLY.

